133528844 has 12 divisors (see below), whose sum is σ = 233832144. Its totient is φ = 66719664.

The previous prime is 133528807. The next prime is 133528853. The reversal of 133528844 is 448825331.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 133528798 and 133528807.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3959 + ... + 16814.

It is an arithmetic number, because the mean of its divisors is an integer number (19486012).

Almost surely, 2^133528844 is an apocalyptic number.

It is an amenable number.

133528844 is a deficient number, since it is larger than the sum of its proper divisors (100303300).

133528844 is a wasteful number, since it uses less digits than its factorization.

133528844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22384 (or 22382 counting only the distinct ones).

The product of its digits is 92160, while the sum is 38.

The square root of 133528844 is about 11555.4681428318. The cubic root of 133528844 is about 511.1225357595.

The spelling of 133528844 in words is "one hundred thirty-three million, five hundred twenty-eight thousand, eight hundred forty-four".